#4A99D3
Closest named color: Dark Sky Blue (#448EE4). oklch(65.8% 0.116 243.1), rgb(74, 153, 211).
Aa
Black text reads best on this color (6.78:1).
About this color
#4A99D3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.116 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.045 away. Black text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.78:1 |
| White text | 3.09:1 |
Values
| HEX | #4A99D3 |
| RGB | rgb(74, 153, 211) |
| HSL | hsl(205, 61%, 56%) |
| OKLCH | oklch(65.8% 0.116 243.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4A99D3 | 3.09:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #4A99D3 | 6.78:1 | AA | Lc 46.4 | Large or bold text, headings |
| #4A99D3 text on white | 3.09:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #4A99D3 text on black | 6.78:1 | AA | Lc -44.1 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A2C6E3
oklch(81% 0.056 242.7)
-
Step 400
400
#6DA7D5
oklch(70.6% 0.091 243.5)
-
Step 500
500 (this color)
#4A99D3
oklch(65.8% 0.116 243.1)
-
Step 600
600
#187AB7
oklch(55.7% 0.126 243)
-
Step 700
700
#04669D
oklch(49% 0.117 243)
-
Step 800
800
#0D5480
oklch(42.8% 0.097 243)
-
Step 900
900
#164566
oklch(37.6% 0.076 243.3)
-
Step 950
950
#0F293C
oklch(27.1% 0.048 243)
#4A99D3 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7F9AD6 | 0.056 |
| Deuteranopia (no green cones) | #6C8CD2 | 0.045 |
| Tritanopia (no blue cones) | #00A7AD | 0.085 |
| Achromatopsia (no color) | #929292 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A99D3
#4A99D3
oklch(65.8% 0.116 243.1)
- #C3813E
#C3813E
oklch(65.9% 0.116 63.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4A99D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.046
- Faded Blue #658CBB ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.050
- Water Blue #0E87CC ΔE 0.064
- Cool Blue #4984B8 ΔE 0.064
- Soft Blue #6488EA ΔE 0.067
- Dusty Blue #5A86AD ΔE 0.067
Use #4A99D3 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.